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Bolted Coupler

Name: Bolted Coupler
Brand: SURYA ENGINEERING
Price: 390.0 INR
Availability: InStock

Price 390.0 INR/ Piece

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MOQ : 100 Pieces

Bolted Coupler Trade Information

Minimum Order Quantity
100 Pieces

Delivery Time
24 Hours

About Bolted Coupler

What is a Bolted Type Coupler?

A Bolted Type Coupler is a mechanical rebar connection system used to join two reinforcement bars (rebars) using high-strength locking bolts. Unlike threaded couplers, bolted type couplers do not require threading or welding. The steel bars are inserted into the coupler sleeve, and bolts are tightened to create a strong and secure connection.

Bolted type couplers are commonly used in construction, bridges, tunnels, metro projects, high-rise buildings, industrial structures, and infrastructure projects where lap splicing is difficult or impractical.

These couplers are also known as Mechanical Bolted Couplers or MBT (Mechanical Bolted Type) Couplers in the construction industry.

Surya Engineering Manufactures in India.

Why is Bolted Type Coupler Used?

Bolted type couplers are used to provide a strong, reliable, and efficient rebar connection without affecting the strength of reinforcement bars.

Main Reasons for Using Bolted Type Couplers

1. No Rebar Threading Required

The coupler works directly on reinforcement bars without threading machines.

2. No Welding Process

Eliminates welding risks and heat damage to steel bars.

3. Faster Construction

Quick bolt tightening helps reduce project timelines.

4. Ideal for Congested Areas

Suitable where rebar rotation is not possible.

5. Better Structural Strength

Provides mechanical locking for strong reinforcement continuity.

6. Reduces Steel Consumption

Helps reduce overlapping steel and material wastage.

7. Suitable for Repair and Retrofit Work

Can be installed where existing rebars cannot move.

Technical Specifications of Bolted Type Coupler

Typical specifications may vary depending on project requirements and manufacturer standards.

Parameter	Specification
Material	High-strength alloy steel
Rebar Diameter Range	12 mm to 40 mm
Connection Type	Mechanical bolted locking
Surface Finish	Zinc coated / anti-corrosion coating
Bolt Material	High tensile steel bolts
Installation Method	Torque tightening
Strength Capacity	Equal or greater than parent rebar
Usage	Reinforcement bar joining

At Surya Engineering, bolted type couplers are designed for precision, durability, and high structural performance.

Classification of Bolted Type Couplers

1. Standard Bolted Coupler

Used for connecting rebars of the same diameter in general RCC construction.

2. Transition Bolted Coupler

Used to connect different diameter rebars.

3. Position Bolted Coupler

Used where rebars cannot rotate due to site conditions.

4. Repair Coupler

Used for:

Damaged reinforcement replacement
Structural retrofitting
Repair projects

5. Anti-Corrosion Bolted Coupler

Special coated couplers for harsh environments such as:

Application

Application Sector	Typical Use Case	Primary Driver
High-Rise	Column vertical splicing	Congestion reduction / Optimized size
Bridges	Widening / Seismic retrofitting	Ease of field installation / Fatigue resistance
Nuclear	Reactor containment walls	Absolute reliability / Documented performance
Metro/Tunnels	Segmental pours	Formwork protection / Safety
Precast	Element-to-element connection	Tolerance for misalignment

Installation Process of Bolted Type Coupler

Step 1: Rebar Surface Cleaning

Ensure rebars are free from dust, rust, oil, or debris.

Step 2: Insert Steel Bars

Insert reinforcement bars into both sides of the coupler.

Step 3: Proper Alignment

Align rebars to ensure center positioning.

Step 4: Tighten Locking Bolts

Use a torque wrench to tighten bolts according to recommended torque values.

Step 5: Inspection

Verify bolt tightness and proper fitment.

Step 6: Final Quality Check

Perform mechanical inspection before concrete pouring.

Parameter	Requirement for Large Bars (#8-#18)
Impact Wrench	1-inch drive, high-quality pneumatic
Operating Pressure	100 psig
Delivered Air Flow	185 cfm
Air Hose Diameter	3/4 inch to 1 inch

Testing Standards for Bolted Type Coupler

Bolted type couplers are tested to ensure structural safety and performance.

Indian Standard

IS 16172:2023 Mechanical splicing of reinforcing bars

International Standards

ACI 318 Building Code Requirements for Structural Concrete
BS 8110 Structural use of concrete
ISO-based quality practices depending on manufacturer and project

Test Type	Objective	Load Range	Standard Reference
Static Tensile	Ultimate strength	$125\% - 150\% f_y$	ASTM A1034, IS 16172
Slip Test	Plastic movement	$0.6 f_y$ cycle	ISO 15835, IS 16172
Cyclic Tensile	Seismic behavior	$5\% - 90\% f_y$	ACI 318, IS 16172
Low-Cycle Fatigue	Dynamic resilience	10,000 cycles	ISO 15835, HKBD
High-Cycle Fatigue	Long-term durability	2 million cycles	ASTM A1034, BS 4449

Related Testing Standards you can find out more on Surya Engineering

website:- https://suryaengineering.net/

Advantages of Bolted Type Coupler

Fast Installation
No Threading Required
Strong Mechanical Joint
Reduces Reinforcement Congestion
Cost Effective
Suitable for Difficult Locations
Improved Safety
High Durability

About Surya Engineering

Surya Engineering is a trusted engineering solutions provider specializing in industrial machinery, construction equipment, dust control systems, and fabrication machinery. The company focuses on delivering high-performance and durable industrial equipment designed for modern construction and manufacturing industries.